found: New York times WWW site, Mar. 22, 2011(in obituary published Mar. 21: Pinetop Perkins; b. Joe Willie Perkins, July 7, 1913, Belzoni, Miss.; d. Monday [Mar. 21, 2011], Austin, Tex., aged 97; boogie-woogie piano player who worked in Muddy Waters's last great band and was among the last surviving members of the first generation of Delta bluesmen)